节点文献
华北地区断层运动与三维构造应力场的演化
EVOLUTION OF 3D TECTONIC STRESS FIELD AND FAULT MOVEMENT IN NORTH CHINA
【摘要】 利用华北地区断层形变测量资料 ,通过三维有限元模型 ,数值模拟了华北地区三维构造应力场的演化过程 ,得到了 1 986~ 1 997年以一年为时间尺度的演化图象 ,并分析了应力场的演化特征 ;结合华北地区该时间段内的地震活动性 ,初步探讨了应力场的演化过程与地震活动性的关系 .
【Abstract】 Based on data of fault movement surveying, we simulate the evolution process of three dimensional stress field in North China by three dimensional finite element method. Evolutional patterns in one year time scale from 1986 to 1997 have been illustrated and the evolution characteristics of stress field have been analyzed. In comparison with the seismic activity among that time interval in North China, we have primarily discussed the relationship between the evolution of stress field and seismic activity.
【关键词】 华北地区;
断层位移;
构造应力场;
图象演化;
三维有限元模型;
【Key words】 North China; fault displacement; tectonic stress field; evolutional pattern; 3D finite element model;
【Key words】 North China; fault displacement; tectonic stress field; evolutional pattern; 3D finite element model;
【基金】 国家自然科学基金项目 (4 95 742 2 3 );中国地震局“九五”重点项目 (95 -0 4-0 4-0 3 -0 1 )共同资助
- 【文献出处】 地震学报 ,Acta Seismologica Sinica , 编辑部邮箱 ,2001年04期
- 【分类号】P553
- 【被引频次】44
- 【下载频次】306